00278nam a2200109 a 450000500170000002000150001708200210003210000300005324500450008326000260012830000140015420251203091522.0  a9289012358  a355.345,bD, Who  aWorld Health Organization  aPrimary Health care-from thory to action  aCopenhagenbWhoc1982  a30p, 22cm